Found in enwiki (wmf.20)
- In Preferences-Recent Changes enable "Group changes by page in recent changes and watchlist (de-activate for the "Show Wikidata" option below to work)" option.
Note: the option is called 'Enhanced recent changes' in enwiki
- The Legend letters 'r', 'm' etc will be moved to the left (although very often there is no grouping by page for those entires)